Psychology exam 2 Flashcards
Aserinski -1950
Discovered sleep cycle and REM sleep
- Beta waves - low intensity ,very high frequency waves . Relaxed in preparation for sleep.
- Alpha waves drowsiness but not yet asleep. Calm or meditative state.
Hans Berger-1920
Frequency and intensity Discovered the (EEG) electroencephalogram in 1920
JB Watson
Classical conditioning with emotions ( Albert and rat)
Used paired association
John Garcia
Good aversion
Ivan Pavlov
Classical conditioning
Julian Rotter
Locus of control
The role of expectations in learning
Internalizers are more successful students
Martin seligman-
Learned helplessness
The role of beliefs in learning
(3 dog experiment
Albert Bandura
Observational Learning ( Modeling) Someone observes a behavior sequence a mental representation is formed The role of schemas in learning -attend -remember -capable of doing the actions -expect reinforcement for behavior performance ( aggressive children video )
Hobson
Activation/synthesis; awareness of the brains internally generated signals during sleep ( pet scanner)
Dreams have no meaning
Carl hung
The unconscious mind is helpful and dream content must be amplified to be understood
Dreams make us whole and individuality.
Amplification
Freud
Dreams are the symbolic manifestation of repressed urges, wishes and desires
Manifest and latent content
Free association
Fixed ratio
Vending machine
Every time time behavior there is a reinforcer
Good to start off but not continue
Variable ratio
Slot machine gambler
Behavior difficult to extinct
Continue behavior without knowing when it will be reinforced but possible at any time ( chance of winning)
Fixed interval
Reinforced during set passage of time
( doesn’t matter how many times they do the behavior)
-Pay Check
Variable Interval
Intervals between reinforcers Varies.
Don’t know how long or when there will be reinforcement
( waiting for a call from attractive person/job) ( fishing )
Not efficient
Behavior Shaping
Reinforcing successively closer approximations of the desired behaviors until behaviors is achieved
( training dog to open trash can in 20 min)
Application ( Martin Seligman)
Exposure to uncontrollable aversive evens can produce passivity and learned helplessness.
Sensation
Detection of basic stimuli from the environment through the senses , sound, visual objects and odors .
Transduction
Form of physical energy is converted into a neural code that can be processed by the nervous system
Sensory thresholds
Smallest possible strength of a stimuli that can be detected half the time
Difference thresholds ( JND)
Smallest possible difference between two stimuli that can be detected half the time
Webers law
Size of a JND is a constant proportion of the size of the initial stimulus
Sensory adaption
Gradual decline in sensitivity to a constant stimulus
(Seasoning in food)
(Temperature in a pool)
Perception
Process by which the brain organizes , I terpenes and relates new data to existing knowledge
Top down perceptions
Conceptually given
Prior knowledge
Bottom up
Generate perception based on the constituent parts data given
Gestalt
The unified whole is different from the sum of parts
mind try’s to see everything as whole
Max Wertheimer
Principles of perception Similarity Closure Continuity Proximity Figure ground
Similarity
Similar things are perceived as being related
Proximity
Closeness of the item
Continuity
Expectations that movements will continue in a given direction